oo
Class Orientation

java.lang.Object
  oo.Orientation

All Implemented Interfaces:

HasHLT, PRYable

Direct Known Subclasses:

OrientationFLB, OrientationFRT, OrientationHLT, OrientationHRB

public abstract class Orientation
extends java.lang.Object
implements PRYable

An orientation of a mattress. There are four possible orientations (HLT, HRB, FLB, and FRT); no others can be constructed.

This class ensures that the only orientations are the four physically-possible orientations. Each orientation is embodied by a singleton object of a subclass of Orientation.

Field Summary

static Orientation	FLB The singleton FLB orientation.
static Orientation	FRT The singleton FRT orientation.
static Orientation	HLT The singleton HLT orientation.
static Orientation	HRB The singleton HRB orientation.

Constructor Summary

protected

Orientation(java.lang.String _toString) Protected constructor for orientations.

Method Summary

Orientation	FLB() The FLB orientation (foot, left, bottom).
Orientation	FRT() The FRT orientation (foot, right, top).
boolean	headRed() True iff the red end is at the top.
Orientation	HLT() The HLT orientation (head, left, top).
Orientation	HRB() The HRB orientation (head, right, bottom).
boolean	leftBlue() True iff the blue side is at the left.
abstract Orientation	pitch() Pitches the thing a half-turn (180 degrees).
abstract Orientation	roll() Rolls the thing a half-turn (180 degrees).
boolean	topGreen() True iff the green surface is on the top.
java.lang.String	toString() "HLT", "HRB", "FLB", or "FRT", whichever describes this orientation.
abstract Orientation	yaw() Yaws the thing a half-turn (180 degrees).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

HLT

public static final Orientation HLT

The singleton HLT orientation.

HRB

public static final Orientation HRB

The singleton HRB orientation.

FLB

public static final Orientation FLB

The singleton FLB orientation.

FRT

public static final Orientation FRT

The singleton FRT orientation.

Constructor Detail

Orientation

protected Orientation(java.lang.String _toString)

Protected constructor for orientations.

Parameters:

_toString - "HLT", "HRB", "FLB", or "FRT".

Method Detail

toString

public java.lang.String toString()

"HLT", "HRB", "FLB", or "FRT", whichever describes this orientation.

Specified by:

toString in interface HasHLT

Overrides:

toString in class java.lang.Object

headRed

public boolean headRed()

Description copied from interface: HasHLT

True iff the red end is at the top.

Specified by:

headRed in interface HasHLT

leftBlue

public boolean leftBlue()

Description copied from interface: HasHLT

True iff the blue side is at the left.

Specified by:

leftBlue in interface HasHLT

topGreen

public boolean topGreen()

Description copied from interface: HasHLT

True iff the green surface is on the top.

Specified by:

topGreen in interface HasHLT

roll

public abstract Orientation roll()

Description copied from interface: PRYable

Rolls the thing a half-turn (180 degrees).

Specified by:

roll in interface PRYable

Returns:

The result of the roll.

pitch

public abstract Orientation pitch()

Description copied from interface: PRYable

Pitches the thing a half-turn (180 degrees).

Specified by:

pitch in interface PRYable

Returns:

The result of the pitch.

yaw

public abstract Orientation yaw()

Description copied from interface: PRYable

Yaws the thing a half-turn (180 degrees).

Specified by:

yaw in interface PRYable

Returns:

The result of the yaw.

HLT

public Orientation HLT()

The HLT orientation (head, left, top).

HRB

public Orientation HRB()

The HRB orientation (head, right, bottom).

FLB

public Orientation FLB()

The FLB orientation (foot, left, bottom).

FRT

public Orientation FRT()

The FRT orientation (foot, right, top).